idnr: 658
1     4
       
       
3     1
Difficulty: Very easy (0)
idnr: 168
  4    
      1
1      
    2  
Difficulty: Very easy (0)
idnr: 1034
3      
2      
      1
      4
Difficulty: Super easy (0)
idnr: 96
       
    4 1
1 2    
       
Difficulty: Super easy (0)